EP 2878589 A1 20150603 - FLEXIBLE METHOD FOR THE TREATMENT OF A SOLVENT USED IN THE EXTRACTION OF NATURAL GAS
Title (en)
FLEXIBLE METHOD FOR THE TREATMENT OF A SOLVENT USED IN THE EXTRACTION OF NATURAL GAS
Title (de)
FLEXIBLES VERFAHREN FÜR DIE AUFBEREITUNG VON LÖSUNGSMITTELN, DAS ZUM ABBAU VON ERDGAS VERWENDET WIRD
Title (fr)
PROCÉDÉ FLEXIBLE POUR LE TRAITEMENT DE SOLVANT UTILISÉ DANS L'EXTRACTION DU GAZ NATUREL
Publication
Application
Priority
FR 1361500 A 20131122
Abstract (en)
[origin: CN104645651A] The invention concerns a flexible process for purifying a solvent which inhibits the formation of hydrates during gas processing, in particular monoethylene glycol (MEG), said solvent having a boiling point which is higher than that of water and, at least at one point in time, being mixed with water and salts, the process operating in a different manner with the same facility as a function of the quantity of salts in the MEG to be treated. The process operates in accordance with a phase known as reclaiming (separation of salts under vacuum followed by vacuum distillation) when the salts content exceeds the precipitation threshold and if not, the process operates in a regeneration phase (absence of separation of salts and no operation under vacuum). Advantageously, the change is made under the control of means for testing the salts.
Abstract (fr)
L'invention concerne un procédé flexible pour la purification d'un solvant inhibiteur de la formation d'hydrates lors du traitement de gaz , en particulier de monoéthylène glycol (MEG), ledit solvant ayant un point d'ébullition supérieur à celui de l'eau et étant ,à un moment au moins, en mélange avec de l'eau et des sels , le procédé opérant différemment avec la même installation selon la teneur en sels du MEG à traiter. Le procédé opère selon une phase dite de reclaiming (séparation des sels sous vide suivie de distillation sous vide) lorsque la teneur en sels dépasse le seuil de précipitation et sinon le procédé opère en phase de régénération (absence de séparation de sels et pas de fonctionnement sous vide). Avantageusement, le basculement a lieu sous asservissement à un moyen de dosage des sels.
IPC 8 full level
C07C 29/80 (2006.01); B01D 3/10 (2006.01); C07C 31/20 (2006.01)
CPC (source: EP US)
B01D 3/06 (2013.01 - EP US); B01D 3/10 (2013.01 - US); B01D 3/148 (2013.01 - EP US); B01D 3/34 (2013.01 - US); B01D 53/1425 (2013.01 - US); C07C 29/80 (2013.01 - EP US); B01D 2252/2023 (2013.01 - US)
Citation (applicant)
EP 1261410 A2 20021204 - CANADIAN CHEMICAL RECLAIMING L [CA]
Citation (search report)
- [A] WO 2010080038 A1 20100715 - AKER PROCESS SYSTEMS AS [NO], et al
- [A] GB 2467169 A 20100728 - STATOILHYDRO ASA [NO]
- [A] EP 1415965 A1 20040506 - INST FRANCAIS DU PETROLE [FR]
- [A] WO 9839076 A1 19980911 - KVAERNER PROCESS SYSTEMS AS [NO], et al
- [A] WO 2005092470 A1 20051006 - KVAERNER PROCESS SYSTEMS AS [NO], et al
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 2878589 A1 20150603; EP 2878589 B1 20171011; AU 2014262279 A1 20150611; AU 2014262279 B2 20180510; BR 102014028675 A2 20150908; CA 2871383 A1 20150522; CN 104645651 A 20150527; CN 104645651 B 20180720; CY 1119977 T1 20181212; DK 2878589 T3 20180122; FR 3013710 A1 20150529; FR 3013710 B1 20160101; MX 2014014075 A 20150527; MX 355599 B 20180424; MY 171296 A 20191007; NO 2878589 T3 20180310; NZ 702098 A 20190531; SA 114360052 B1 20160228; US 2015144477 A1 20150528; US 9943775 B2 20180417
DOCDB simple family (application)
EP 14306770 A 20141105; AU 2014262279 A 20141117; BR 102014028675 A 20141118; CA 2871383 A 20141117; CN 201410673268 A 20141121; CY 181100026 T 20180110; DK 14306770 T 20141105; FR 1361500 A 20131122; MX 2014014075 A 20141119; MY PI2014703444 A 20141118; NO 14306770 A 20141105; NZ 70209814 A 20141119; SA 114360052 A 20141120; US 201414547233 A 20141119